Is there an open-source alternative to GitHub Copilot?

Yes. OpenCode, Claude-Code, Goose, Crush are open-source AI coding assistant alternatives to GitHub Copilot that you can self-host.

Can I self-host a GitHub Copilot alternative for free?

Each option here is open source and self-hostable. Star counts and growth are tracked live on Repository Radar.

// alternatives

Open-source alternatives to GitHub Copilot

4 open-source AI coding assistant alternatives to GitHub Copilot we track, each self-hostable, with live GitHub metrics and a get-it block. These are our picks, not a scrape of GitHub trending. Also replaces Cursor, Windsurf.

💬OpenCode BREAKOUT ACTIVE

anomalyco/opencode

The open source coding agent.

190k

+ 19k/mo (+59%/mo) since covered

TypeScript

🚀Claude-Code BREAKOUT ACTIVE

anthropics/claude-code

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

139k

+ 8k/mo (+149%/mo) since covered

Python

🪿Goose BREAKOUT ACTIVE

aaif-goose/goose

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

52k

+ 3k/mo (+19%/mo) since covered

Rust

🖥️Crush BREAKOUT ACTIVE

charmbracelet/crush

Glamourous agentic coding for all 💘

27k

+ 2k/mo (+22%/mo) since covered